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We show that multisoliton solutions to the Benjamin--Ono equation are uniformly orbitally stable in $H^s(\mathbb{R})$ for every $-\tfrac12<s\leq \frac12$. This improves the regularity required for stability up to the sharp well-posedness…

Analysis of PDEs · Mathematics 2025-09-18 Rana Badreddine , Rowan Killip , Monica Visan

We present a comprehensive introduction and overview of a recently derived model equation for waves of large amplitude in the context of shallow water waves and provide a literature review of all the available studies on this equation.…

Analysis of PDEs · Mathematics 2020-11-04 Nilay Duruk Mutlubas , Anna Geyer , Ronald Quirchmayr

We show new global well-posedness results for mass-critical nonlinear Schr\"odinger equations on tori in one and two dimensions. For the quintic nonlinear Schr\"odinger equation on the circle we show global well-posedness for initial data…

Analysis of PDEs · Mathematics 2023-12-29 Robert Schippa

In this paper, complex Ginzburg-Landau (CGL) equations with superlinear growth terms are studied. We discuss the local well-posedness in the energy space H1 for the initial-boundary value problem of the equations in general domains. The…

Analysis of PDEs · Mathematics 2022-09-13 Takanori Kuroda , Mitsuharu Ôtani

We prove local and global well-posedness results for the Gabitov-Turitsyn or dispersion managed nonlinear Schr\"odinger equation with a large class of nonlinearities and arbitrary average dispersion on $L^2(\mathbb{R})$ and…

Analysis of PDEs · Mathematics 2022-12-15 Mi-Ran Choi , Dirk Hundertmark , Young-Ran Lee

We prove a local in time well-posedness result for quasi-linear Hamiltonian Schr\"odinger equations on $\mathbb{T}^d$ for any $d\geq 1$. For any initial condition in the Sobolev space $H^s$, with $s$ large, we prove the existence and…

Analysis of PDEs · Mathematics 2022-02-15 Roberto Feola , Felice Iandoli

As a continuation of the previous work \cite{Wu}, we consider the global well-posedness for the derivative nonlinear Schr\"odinger equation. We prove that it is globally well-posed in energy space, provided that the initial data $u_0\in…

Analysis of PDEs · Mathematics 2016-01-20 Yifei Wu

We consider the periodic dispersion generalized Benjamin-Ono equations with polynomial nonlinearity. We establish the nonlinear smoothing properties of these equations, according to which the difference between the solution and the linear…

Analysis of PDEs · Mathematics 2024-10-18 Wangseok Shin

We discuss strong local and global well-posedness for the three-dimensional NLS equation with nonlinearity concentrated on $\mathbb{S}^2$. Precisely, local well-posedness is proved for any $C^2$ power-nonlinearity, while global…

Analysis of PDEs · Mathematics 2024-01-02 Domenico Finco , Lorenzo Tentarelli , Alessandro Teta

We consider the probabilistic Cauchy problem for the Benjamin-Bona-Mahony equation (BBM) on the one-dimensional torus $\mathbb{T}$ with initial data below $L^{2}(\mathbb{T})$. With respect to random initial data of strictly negative Sobolev…

Analysis of PDEs · Mathematics 2019-09-09 Justin Forlano

We prove the invariance of the Gibbs measure for the periodic Schrodinger-Benjamin-Ono system (when the coupling parameter |\gamma| \ne 0, 1) by establishing a new local well-posedness in a modified Sobolev space and constructing the Gibbs…

Analysis of PDEs · Mathematics 2009-04-21 Tadahiro Oh

We consider the Klein-Gordon-Schr\"odinger system \begin{align*} i \partial_t \psi + \Delta \psi & = \phi^2 \psi - \phi \psi \\ (\Box +1)\phi & = -2|\psi|^2 \phi + |\psi|^2 \end{align*} with additional cubic terms and Cauchy data $$ \psi(0)…

Analysis of PDEs · Mathematics 2019-10-16 Hartmut Pecher

We prove the local well-posedness for a two phase problem of magnetohydrodynamics with a sharp interface. The solution is obtained in the maximal regularity space: $H^1_p((0, T), L_q) \cap L_p((0, T), H^2_q)$ with $1 < p, q < \infty$ and…

Analysis of PDEs · Mathematics 2020-03-03 Elena Frolova , Yoshihiro Shibata

We study the local well-posedness theory for the Schr\"odinger Maps equation. We work in $n+1$ dimensions, for $n \geq 2$, and prove a local well-posedness for small initial data in $H^{\frac{n}{2}+\e}$.

Analysis of PDEs · Mathematics 2007-05-23 Ioan Bejenaru

This work studies the local well-posedness of the initial-value problem for the nonlinear sixth-order Boussinesq equation $u_{tt}=u_{xx}+\beta u_{xxxx}+u_{xxxxxx}+(u^2)_{xx}$, where $\beta=\pm1$. We prove local well-posedness with initial…

Analysis of PDEs · Mathematics 2012-04-26 Luiz Gustavo Farah , Amin Esfahani

We prove the control and stabilization of the Benjamin-Ono equation in $L^2(\T)$, the lowest regularity where the initial value problem is well-posed. This problem was already initiated in \cite{LinaresRosierBO} where a stronger…

Analysis of PDEs · Mathematics 2015-10-28 Camille Laurent , Felipe Linares , Lionel Rosier

The initial value problem for two-dimensional Zakharov-Kuznetsov equation is shown to be globally well-posed in $H^s({\mathbb{R}^2})$ for all $\frac{5}{7}<s<1$ via using $I$-method in the context of atomic spaces. By means of the increment…

Analysis of PDEs · Mathematics 2018-10-09 Minjie Shan

We study the generalized Hartree equation, which is a nonlinear Schr\"odinger-type equation with a nonlocal potential $iu_t + \Delta u + (|x|^{-b} \ast |u|^p)|u|^{p-2}u=0, x \in \mathbb{R}^N$.We establish the local well-posedness at the…

Analysis of PDEs · Mathematics 2019-10-03 Anudeep K. Arora , Svetlana Roudenko

In this note, we consider the derivative nonlinear Schr\"odinger equation on the circle. In particular, by adapting Wu's recent argument to the periodic setting, we prove its global well-posedness in $H^1(\mathbb T)$, provided that the mass…

Analysis of PDEs · Mathematics 2015-07-07 Razvan Mosincat , Tadahiro Oh

We prove new well-posedness results for dispersion-generalized Kadomtsev--Petviashvili I equations in $\mathbb{R}^2$, which family links the classical KP-I equation with the fifth order KP-I equation. For strong enough dispersion, we show…

Analysis of PDEs · Mathematics 2024-01-17 Akansha Sanwal , Robert Schippa
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